...phase different connections, But it need to be able to measure 3 phase as well. It need to be very strong to deal with a 24/7 measurements.
2. Can send the data throw the internet
3. Can produced as a white label (Not must)
4. Low cost
5. Can work 24/7
6. Energy efficient
7. Reliable (pass the IEC tests - advantage)
I also searched in Alibaba for this

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